20830766 has 8 divisors (see below), whose sum is σ = 34086744. Its totient is φ = 9468520.

The previous prime is 20830751. The next prime is 20830807. The reversal of 20830766 is 66703802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473405 + ... + 473448.

It is an arithmetic number, because the mean of its divisors is an integer number (4260843).

Almost surely, 2^20830766 is an apocalyptic number.

20830766 is a deficient number, since it is larger than the sum of its proper divisors (13255978).

20830766 is a wasteful number, since it uses less digits than its factorization.

20830766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946866.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20830766 is about 4564.0733999356. The cubic root of 20830766 is about 275.1493007464.

The spelling of 20830766 in words is "twenty million, eight hundred thirty thousand, seven hundred sixty-six".